Home / 4,217.30-6,319.50-2,131.50

Finding the Fourth Proportional to 4,217.30, 6,319.50 and 2,131.50

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Solution

The fourth proportional to 4,217.30, 6,319.50 and 2,131.50 is: 3,193.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,217.30 : 6,319.50 = 2,131.50 : x
  2. Step 2: Convert to fraction form
    4,217.30/6,319.50 = 2,131.50/x
  3. Step 3: Cross multiply
    4,217.30x = 6,319.50 × 2,131.50
  4. Step 4: Simplify right side
    4,217.30x = 13,470,014.25
  5. Step 5: Solve for x
    x = 13,470,014.25/4,217.30
  6. Step 6: Final answer
    x = 3,193.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.